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Cluster magnetic octupole induced out-of-plane spin polarization in antiperovskite antiferromagnet
- Source :
- Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021), Nature Communications
- Publication Year :
- 2021
- Publisher :
- Nature Portfolio, 2021.
-
Abstract
- Out-of-plane spin polarization {\sigma}_z has attracted increasing interests of researchers recently, due to its potential in high-density and low-power spintronic devices. Noncollinear antiferromagnet (AFM), which has unique 120{\deg} triangular spin configuration, has been discovered to possess {\sigma}_z. However, the physical origin of {\sigma}_z in noncollinear AFM is still not clear, and the external magnetic field-free switching of perpendicular magnetic layer using the corresponding {\sigma}_z has not been reported yet. Here, we use the cluster magnetic octupole in antiperovskite AFM Mn3SnN to demonstrate the generation of {\sigma}_z. {\sigma}_z is induced by the precession of carrier spins when currents flow through the cluster magnetic octupole, which also relies on the direction of the cluster magnetic octupole in conjunction with the applied current. With the aid of {\sigma}_z, current induced spin-orbit torque (SOT) switching of adjacent perpendicular ferromagnet is realized without external magnetic field. Our findings present a new perspective to the generation of out-of-plane spin polarizations via noncollinear AFM spin structure, and provide a potential path to realize ultrafast high-density applications.<br />Comment: 23 pages, 4 figures, accepted by Nat. Commun
- Subjects :
- Permalloy
Science
FOS: Physical sciences
General Physics and Astronomy
Article
General Biochemistry, Genetics and Molecular Biology
Magnetization
Condensed Matter::Materials Science
Magnetic properties and materials
Spin (physics)
Physics
Condensed Matter - Materials Science
Multidisciplinary
Spin polarization
Spintronics
Condensed matter physics
Condensed Matter::Other
Materials Science (cond-mat.mtrl-sci)
General Chemistry
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Magnetic field
Antiperovskite
Ferromagnetism
Condensed Matter::Strongly Correlated Electrons
Subjects
Details
- Language :
- English
- ISSN :
- 20411723
- Volume :
- 12
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Nature Communications
- Accession number :
- edsair.doi.dedup.....b93a9da66f3ae451278405f14429ac99